How do you get better at mw3

Do not keep rushing at the same spot you are getting killed at. Even if you want revenge, just take a different route. If all your team mates are on one side of the map, the enemy isn't there. Do not rush into the action take a route where people will not be and get an advantage by getting behind them. I would also recommend a silencer on your gun, so you don't show up on the enemies radar each time you fire. Try support class if you can get high kills but not consecutively.

Also, pick a gun, gun attachments, perks, streaks etc which you are more confident with. Dont think you have to rank up all guns because you do not.

Another really helpful thing, is to go into a private match. Set up the game on the map you are doing bad on. Once playing, figure out where everybody camps. Once that is done, see if you can determine any good lines of sight, grenade spots, or even tactical grenade spots, as these can help you easily take out any campers. Yes, use the support package if you are beginning, then try assault. The specialist is for more advanced players who can get all their kills with their gun. Look up flanking, rushing, and more tips in youtube as some people give quality information.

Youtube.com/tmartn
Youtube.com/12awinstinct